CA1228127A - Apparatus for soldering the winding to the collector of an electric machine - Google Patents
Apparatus for soldering the winding to the collector of an electric machineInfo
- Publication number
- CA1228127A CA1228127A CA000469892A CA469892A CA1228127A CA 1228127 A CA1228127 A CA 1228127A CA 000469892 A CA000469892 A CA 000469892A CA 469892 A CA469892 A CA 469892A CA 1228127 A CA1228127 A CA 1228127A
- Authority
- CA
- Canada
- Prior art keywords
- magnetic core
- bath
- basis
- winding
- stream
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000004804 winding Methods 0.000 title claims abstract description 14
- 238000005476 soldering Methods 0.000 title claims abstract description 8
- 230000005291 magnetic effect Effects 0.000 claims abstract description 31
- 229910000679 solder Inorganic materials 0.000 claims abstract description 14
- 239000003302 ferromagnetic material Substances 0.000 claims abstract description 8
- 230000008018 melting Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 210000002105 tongue Anatomy 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
- B23K3/06—Solder feeding devices; Solder melting pans
- B23K3/0646—Solder baths
- B23K3/0653—Solder baths with wave generating means, e.g. nozzles, jets, fountains
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R39/00—Rotary current collectors, distributors or interrupters
- H01R39/02—Details for dynamo electric machines
- H01R39/32—Connections of conductor to commutator segment
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/02—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for soldered or welded connections
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K13/00—Structural associations of current collectors with motors or generators, e.g. brush mounting plates or connections to windings; Disposition of current collectors in motors or generators; Arrangements for improving commutation
- H02K13/04—Connections between commutator segments and windings
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Motor Or Generator Current Collectors (AREA)
- Coils Or Transformers For Communication (AREA)
- Manufacture Of Motors, Generators (AREA)
- Molten Solder (AREA)
- Manufacturing Of Electrical Connectors (AREA)
- Primary Cells (AREA)
- General Induction Heating (AREA)
- Electric Connection Of Electric Components To Printed Circuits (AREA)
- Dc Machiner (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE:
An apparatus for soldering the winding to the commutator of an electric machine, which comprises a bath with molten solder and electric resistance heaters, a single-phase magneto-hydrodynamic pump consisting of a magnetic core, surrounded by winding, and a stream-formation unit made of ferromagnetic material which is concentric to the magnetic core, a basis which is a hollow cylinder with conical internal bottom surface and radial holes arranged above the conical surface and a limiting ring, and of a changeable nozzle unit disposed concentrically on the basis and consisting of a tubular casing with chamfered upper end, which is rigidly fastened in a sleeve. The bath is disposed on the magnetic core, and on the bottom of the bath there is fastened rigidly an additional hollow magnetic core, which is a continuation of the magnetic core, while the tubular casing which is of stepped shape, seats with its external step on the additional hollow magnetic core. Concentrically to the additional hollow magnetic core there is disposed a stream-formation unit which consists of a cylindrical part, carrying the basis with limiting ring, and a disc, which is rigidly fixed to the bottom of the bath by means of distance inserts made of ferromagnetic material.
An apparatus for soldering the winding to the commutator of an electric machine, which comprises a bath with molten solder and electric resistance heaters, a single-phase magneto-hydrodynamic pump consisting of a magnetic core, surrounded by winding, and a stream-formation unit made of ferromagnetic material which is concentric to the magnetic core, a basis which is a hollow cylinder with conical internal bottom surface and radial holes arranged above the conical surface and a limiting ring, and of a changeable nozzle unit disposed concentrically on the basis and consisting of a tubular casing with chamfered upper end, which is rigidly fastened in a sleeve. The bath is disposed on the magnetic core, and on the bottom of the bath there is fastened rigidly an additional hollow magnetic core, which is a continuation of the magnetic core, while the tubular casing which is of stepped shape, seats with its external step on the additional hollow magnetic core. Concentrically to the additional hollow magnetic core there is disposed a stream-formation unit which consists of a cylindrical part, carrying the basis with limiting ring, and a disc, which is rigidly fixed to the bottom of the bath by means of distance inserts made of ferromagnetic material.
Description
Apparatus for soldering the winding to the commutator of an electric machine.
This invention relates to an apparatus for soldering the wires of the armature winding to the commutator of an electric machine with a rotor of high weight.
There is known an apparatus for soldering the winding to the commutator of an electric machine (1), which comprises a single-phase magneto-hydrodynamic pump, lo consisting of a magnetic core, surrounded by a winding, a stream-formation unit made of ferromagnetic material, a bath with molten solder and electric resistance heaters.
The stream-formation unit is disposed underneath the bath and is connected to it via inlet conduits and one outlet conduit, communicating with a central hole in the bottom of the bath. Above the central hole in the bottom of the bath there is fastened a base which is a hollow cylinder with a conical internal bottom surface, and above the conical surface there are provided radial holes, while in the upper part of the basis there are at least three vertical conduits and a limiting ring. Concentrically to the basis there is disposed a changeable nozzle unit, made-up of a tubular casing with chamfered upper end, which is rigidly fastened in a sleeve, the bottom surface of which is conical with the same inclination as that of the internal bottom surface of the hollow cylinder. Between the tubular casing and the sleeve there is formed an annular passage which forms the stream of the molten solder. This apparatus is versatile since it is possible to use it with commutators of different diameter.
A drawback of this apparatus lies in the inadmissible loading of the changeable nozzle unit and the bottom of the bath and, therefore, it connote be used in the case of rotors of high weight.
This invention relates to an apparatus for soldering the wires of the armature winding to the commutator of an electric machine with a rotor of high weight.
There is known an apparatus for soldering the winding to the commutator of an electric machine (1), which comprises a single-phase magneto-hydrodynamic pump, lo consisting of a magnetic core, surrounded by a winding, a stream-formation unit made of ferromagnetic material, a bath with molten solder and electric resistance heaters.
The stream-formation unit is disposed underneath the bath and is connected to it via inlet conduits and one outlet conduit, communicating with a central hole in the bottom of the bath. Above the central hole in the bottom of the bath there is fastened a base which is a hollow cylinder with a conical internal bottom surface, and above the conical surface there are provided radial holes, while in the upper part of the basis there are at least three vertical conduits and a limiting ring. Concentrically to the basis there is disposed a changeable nozzle unit, made-up of a tubular casing with chamfered upper end, which is rigidly fastened in a sleeve, the bottom surface of which is conical with the same inclination as that of the internal bottom surface of the hollow cylinder. Between the tubular casing and the sleeve there is formed an annular passage which forms the stream of the molten solder. This apparatus is versatile since it is possible to use it with commutators of different diameter.
A drawback of this apparatus lies in the inadmissible loading of the changeable nozzle unit and the bottom of the bath and, therefore, it connote be used in the case of rotors of high weight.
2~7 Another drawback are the increased thermal losses, resulting from the circumstance, that the stream-formation unit is arranged outside the bath and it is connected to it via external conduits with a considerable heat-release surface.
It is, therefore, a general object of this invention to develop an apparatus which makes it possible to solder the winding to the commutator of rotors of high weight and can operate at reduced thermal losses, while preserving its versatility.
This object is achieved by an apparatus for soldering the winding to the commutator of an electric machine, which comprises a bath with molten solder and electric resistance heaters, a single-phase magneto-hydrodynamics pump consisting of a magnetic core, surrounded by winding, and a stream-formation unit made of ferromagnetic material which is concentric to the magnetic core, a basis which is a hollow cylinder with conical internal bottom surface and radial holes arranged above the conical surface and a limiting ring, and of a changeable nozzle unit disposed concentrically on the basis and consisting of a tubular casing with chamfered upper end, which is rigidly fastened in a sleeve. The bath is disposed on the magnetic core, and on the bottom of the bath there is fastened rigidly an additional hollow magnetic core, which is a continuation of the magnetic core, while the tubular casing which is of stepped shape, seats with it external step on the additional hollow magnetic core. Concentrically to the additional hollow magnetic core there is disposed a stream-formation unit which consists of a cylindrical part, carrying the basis with limiting ring, and a disc, which is rigidly fixed to the bottom of the bath by means of distance inserts made of ferromagnetic material.
The advantages of the apparatus lie in the possibility of soldering the winding to the commutator of rotors of high weight, while preserving its versatility, in the reduced thermal losses and the reduced consumption of electric energy. This is achieved by placing the stream-formation unit in the bath, thus eliminating the need of external conduits.
For a better understanding of the invention, reference should be made to the accompanying of drawing, in which there is shown a view partially in vertical cross-lo section and partially in elevation of a preferred embodiment of the apparatus in working position.
It is seen in the drawing that to the bath 1 with molten solder and electric resistance heaters 2 there is mounted a single-phase magne-to-hydrodynamic pump, comprising a magnetic core 3, surrounded by a winding 4, disposed underneath the bath 1, and an additional hollow magnetic core 5, disposed on the bottom of the bath 1, a stream-formation unit comprising a cylindrical part 6 and a disc 7, fixed to the bottom of to bath l by means of distance inserts 8 made o-f ferromagnetic material and disposed concentrically to the additional hollow magnetic core 5, and external magnetic cores 9 which connect the disc of the stream formation unit 7 to the magnetic core 3. To the upper end of the stream-formation unit there is fixed a basis 10, in which there is disposed a changeable nozzle unit, comprising a tubular casing 11 of stepped shape with chamfered upper end and a sleeve 12, which are rigidly connected in-between. In the bottom portion of the basis lo there are bored radial holes 17, while in the upper portion there is fastened by means of an easily releasable joint a limiting ring 13, which fixes the sleeve 12 in upper position. The tubular casing 11 is supported by means of its external step on the additional hollow magnetic core 5.
The operation of the apparatus of this invention is as follows:
The melting of the solder is effected by the electric resistance heaters 2 and by way of induction by the single-phase magneto-hydrodynamic pump. After the melting of the solder, the hydrodynamics forces push the changeable nozzle unit in upper position - up to the limiting ring 13.
The molten solder, sucked from the bottom of the bath 1, passes through the stream-formation unit and, through the holes 17 in the bottom zone of the basis 10, it flows to the bath 1.
When a rotor is placed in the apparatus, the commutator 14 enters into the tubular casing 11 until it touches its internal step, it presses and moves downwards the nozzle unit, until the tubular casing 11 touches the additional hollow magnetic core 5 and, at that the sleeve 12 covers the holes 17 in the basis 10. The sealing between the commutator 14 and the tubular casing 11 is effected by the sealing ring 15. The molten solder pushed by the stream-formation unit now passes through the nozzle unit, forms a ring-shaped stream and washes the tongues of the commutator 14, heats them and solders the wires to the plates of the commutator 14.
When taking out the rotor, the stream-formation unit is moved upwards until it touches the limiting ring 13.
At that, the molten solder passes again through the holes 17 of the basis 10.
In cases when it is necessary to solder a commutator with a diameter different from the previous one, the limiting ring 13 is removed and the nozzle unit is replaced by a suitable one.
The weight of the rotor is taken-up by the tubular casing 14, the additional hollow magnetic core 5 and the magnetic core 3. For reducing the -thermal losses, the bath lo 7 2 and the magnetic core 3 are covered with thermal insulation 16.
It is, therefore, a general object of this invention to develop an apparatus which makes it possible to solder the winding to the commutator of rotors of high weight and can operate at reduced thermal losses, while preserving its versatility.
This object is achieved by an apparatus for soldering the winding to the commutator of an electric machine, which comprises a bath with molten solder and electric resistance heaters, a single-phase magneto-hydrodynamics pump consisting of a magnetic core, surrounded by winding, and a stream-formation unit made of ferromagnetic material which is concentric to the magnetic core, a basis which is a hollow cylinder with conical internal bottom surface and radial holes arranged above the conical surface and a limiting ring, and of a changeable nozzle unit disposed concentrically on the basis and consisting of a tubular casing with chamfered upper end, which is rigidly fastened in a sleeve. The bath is disposed on the magnetic core, and on the bottom of the bath there is fastened rigidly an additional hollow magnetic core, which is a continuation of the magnetic core, while the tubular casing which is of stepped shape, seats with it external step on the additional hollow magnetic core. Concentrically to the additional hollow magnetic core there is disposed a stream-formation unit which consists of a cylindrical part, carrying the basis with limiting ring, and a disc, which is rigidly fixed to the bottom of the bath by means of distance inserts made of ferromagnetic material.
The advantages of the apparatus lie in the possibility of soldering the winding to the commutator of rotors of high weight, while preserving its versatility, in the reduced thermal losses and the reduced consumption of electric energy. This is achieved by placing the stream-formation unit in the bath, thus eliminating the need of external conduits.
For a better understanding of the invention, reference should be made to the accompanying of drawing, in which there is shown a view partially in vertical cross-lo section and partially in elevation of a preferred embodiment of the apparatus in working position.
It is seen in the drawing that to the bath 1 with molten solder and electric resistance heaters 2 there is mounted a single-phase magne-to-hydrodynamic pump, comprising a magnetic core 3, surrounded by a winding 4, disposed underneath the bath 1, and an additional hollow magnetic core 5, disposed on the bottom of the bath 1, a stream-formation unit comprising a cylindrical part 6 and a disc 7, fixed to the bottom of to bath l by means of distance inserts 8 made o-f ferromagnetic material and disposed concentrically to the additional hollow magnetic core 5, and external magnetic cores 9 which connect the disc of the stream formation unit 7 to the magnetic core 3. To the upper end of the stream-formation unit there is fixed a basis 10, in which there is disposed a changeable nozzle unit, comprising a tubular casing 11 of stepped shape with chamfered upper end and a sleeve 12, which are rigidly connected in-between. In the bottom portion of the basis lo there are bored radial holes 17, while in the upper portion there is fastened by means of an easily releasable joint a limiting ring 13, which fixes the sleeve 12 in upper position. The tubular casing 11 is supported by means of its external step on the additional hollow magnetic core 5.
The operation of the apparatus of this invention is as follows:
The melting of the solder is effected by the electric resistance heaters 2 and by way of induction by the single-phase magneto-hydrodynamic pump. After the melting of the solder, the hydrodynamics forces push the changeable nozzle unit in upper position - up to the limiting ring 13.
The molten solder, sucked from the bottom of the bath 1, passes through the stream-formation unit and, through the holes 17 in the bottom zone of the basis 10, it flows to the bath 1.
When a rotor is placed in the apparatus, the commutator 14 enters into the tubular casing 11 until it touches its internal step, it presses and moves downwards the nozzle unit, until the tubular casing 11 touches the additional hollow magnetic core 5 and, at that the sleeve 12 covers the holes 17 in the basis 10. The sealing between the commutator 14 and the tubular casing 11 is effected by the sealing ring 15. The molten solder pushed by the stream-formation unit now passes through the nozzle unit, forms a ring-shaped stream and washes the tongues of the commutator 14, heats them and solders the wires to the plates of the commutator 14.
When taking out the rotor, the stream-formation unit is moved upwards until it touches the limiting ring 13.
At that, the molten solder passes again through the holes 17 of the basis 10.
In cases when it is necessary to solder a commutator with a diameter different from the previous one, the limiting ring 13 is removed and the nozzle unit is replaced by a suitable one.
The weight of the rotor is taken-up by the tubular casing 14, the additional hollow magnetic core 5 and the magnetic core 3. For reducing the -thermal losses, the bath lo 7 2 and the magnetic core 3 are covered with thermal insulation 16.
Claims
1. An apparatus for soldering the winding to the commutator of an electric machine, comprising a bath with molten solder and electric resistance heaters, a single-phase magneto-hydrodynamic pump, consisting of a magnetic core surrounded by a winding, and a stream-formation unit made of ferromagnetic material, a basis which is a hollow cylinder with conical internal bottom surface and radial holes, arranged above the conical surface and a limiting ring in its upper portion, and of a changeable nozzle unit disposed concentrically to the basis, consisting of a tubular casing with chamfered upper end, fastened rigidly in a sleeve, wherein the bath (1) is disposed on the magnetic core (3), and in the bottom of the bath (2) there is fastened rigidly an additional hollow magnetic core (5) which is a prolongation of the magnetic core (3), while the tubular casing (11), which is of stepped shape, is supported by its external step on the additional hollow magnetic core (5), and concentrically to the additional hollow magnetic core (5) there is disposed a stream-formation unit, consisting of a cylindrical part (6), carrying the basis (10) with the limiting ring (13), and a disc (7), which is rigidly fixed to the bottom of the bath (1) by means of distance inserts (8) made of ferromagnetic material.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BG63386 | 1983-12-09 | ||
| BG8363386A BG38473A1 (en) | 1983-12-09 | 1983-12-09 | Device for soldering a winding to the collector of the electric machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1228127A true CA1228127A (en) | 1987-10-13 |
Family
ID=3913060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000469892A Expired CA1228127A (en) | 1983-12-09 | 1984-12-12 | Apparatus for soldering the winding to the collector of an electric machine |
Country Status (16)
| Country | Link |
|---|---|
| US (1) | US4583673A (en) |
| EP (1) | EP0144982B1 (en) |
| JP (1) | JPS60152255A (en) |
| AT (1) | ATE41114T1 (en) |
| AU (1) | AU572597B2 (en) |
| BG (1) | BG38473A1 (en) |
| CA (1) | CA1228127A (en) |
| CS (1) | CS270253B1 (en) |
| DD (1) | DD254683A7 (en) |
| DE (1) | DE3476976D1 (en) |
| ES (1) | ES8601589A1 (en) |
| HU (1) | HU195040B (en) |
| IN (1) | IN162696B (en) |
| PL (1) | PL250764A1 (en) |
| RO (1) | RO93144B (en) |
| YU (1) | YU45684B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2567370Y2 (en) * | 1991-12-24 | 1998-04-02 | 三陽機器株式会社 | Trench machine |
| DE60232430D1 (en) * | 2001-11-12 | 2009-07-09 | Toshiba Kk | soldering device |
| US7866530B1 (en) * | 2010-06-28 | 2011-01-11 | Valeri Riachentsev | Clean tip soldering station |
| CN102412449B (en) * | 2011-12-29 | 2013-10-09 | 王日新 | Electric connector |
| CN117300319B (en) * | 2023-11-28 | 2024-02-06 | 安徽汉普斯精密传动有限公司 | Automatic butt-welding equipment for motor rotor commutator |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2264703A (en) * | 1939-08-18 | 1941-12-02 | Westinghouse Electric & Mfg Co | Apparatus for soldering commutators |
| US3825994A (en) * | 1972-11-15 | 1974-07-30 | Rca Corp | Method of soldering circuit components to a substrate |
| BG29840A1 (en) * | 1979-06-28 | 1981-02-16 | Minchev | Apparatus for soldering the winding to the collector of electric machines |
| BG31621A1 (en) * | 1980-01-18 | 1982-02-15 | Minchev | Apparatus for soldering the winding to the collector of an electrical machines |
| SU1359089A1 (en) * | 1982-06-02 | 1987-12-15 | Институт По Металлознание И Технология На Металите (Инопредприятие) | Arrangement for soldering a winding to electric machine commutator |
-
1983
- 1983-12-09 BG BG8363386A patent/BG38473A1/en unknown
-
1984
- 1984-12-05 IN IN957/MAS/84A patent/IN162696B/en unknown
- 1984-12-05 ES ES538277A patent/ES8601589A1/en not_active Expired
- 1984-12-06 DE DE8484114860T patent/DE3476976D1/en not_active Expired
- 1984-12-06 EP EP84114860A patent/EP0144982B1/en not_active Expired
- 1984-12-06 AT AT84114860T patent/ATE41114T1/en not_active IP Right Cessation
- 1984-12-06 PL PL25076484A patent/PL250764A1/en unknown
- 1984-12-07 JP JP59259016A patent/JPS60152255A/en active Pending
- 1984-12-07 AU AU36417/84A patent/AU572597B2/en not_active Ceased
- 1984-12-07 HU HU844576A patent/HU195040B/en not_active IP Right Cessation
- 1984-12-07 CS CS849509A patent/CS270253B1/en unknown
- 1984-12-08 DD DD84270478A patent/DD254683A7/en not_active IP Right Cessation
- 1984-12-10 RO RO116599A patent/RO93144B/en unknown
- 1984-12-10 YU YU208784A patent/YU45684B/en unknown
- 1984-12-10 US US06/679,883 patent/US4583673A/en not_active Expired - Lifetime
- 1984-12-12 CA CA000469892A patent/CA1228127A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| IN162696B (en) | 1988-07-02 |
| DD254683A7 (en) | 1988-03-09 |
| CS270253B1 (en) | 1990-06-13 |
| EP0144982A3 (en) | 1987-01-21 |
| YU45684B (en) | 1992-07-20 |
| US4583673A (en) | 1986-04-22 |
| JPS60152255A (en) | 1985-08-10 |
| ES538277A0 (en) | 1985-11-01 |
| RO93144A (en) | 1988-03-30 |
| CS950984A1 (en) | 1989-11-14 |
| BG38473A1 (en) | 1985-12-16 |
| YU208784A (en) | 1986-10-31 |
| PL250764A1 (en) | 1985-08-13 |
| ES8601589A1 (en) | 1985-11-01 |
| DE3476976D1 (en) | 1989-04-13 |
| RO93144B (en) | 1988-03-31 |
| HU195040B (en) | 1988-03-28 |
| EP0144982B1 (en) | 1989-03-08 |
| AU572597B2 (en) | 1988-05-12 |
| EP0144982A2 (en) | 1985-06-19 |
| ATE41114T1 (en) | 1989-03-15 |
| AU3641784A (en) | 1985-06-13 |
| HUT37303A (en) | 1985-11-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |